Dual chamber backpack sprayer



FIG. 1 is a top, front perspective view of a dual chamber backpack sprayer of our new design;

FIG. 2 is a bottom, back perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines depict portions of the dual chamber backpack sprayer that form no part of the claim. 

CLAIM The ornamental design of a dual chamber backpack sprayer, as shown and described. 